PDSCH Scheduling for Unicast-Multicast Resource Overlap Limits
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Solution Overview
Problem
Existing wireless communication systems face challenges in optimizing the use of frequency-domain resources and ensuring compatibility between unicast and multicast PDSCHs, particularly for UEs with limited processing capabilities, leading to potential conflicts and inefficiencies.
Innovation Solution
A method for wireless communication that regulates the total number of frequency-domain resources based on the overlap of PDSCHs in the time domain, ensuring that the total number does not exceed a first upper limit, thereby optimizing resource utilization and reducing processing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the total number of frequency-domain resources occupied by multiple PDSCHs is allowed to exceed the first upper limit, then resource utilization efficiency is improved, but UE processing capability is exceeded leading to system robustness degradation
Solution Approach 1:
The patent dynamically adjusts the total number of frequency-domain resources based on time-domain overlap conditions. When PDSCHs overlap in time, the total frequency resources are constrained to the first upper limit; when they don't overlap, the limit can be exceeded. This parameter change resolves the contradiction by adapting resource allocation to processing capability constraints.
2Reliability
If the total number of frequency-domain resources occupied by multiple PDSCHs is constrained to not exceed the first upper limit, then UE processing capability is ensured, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent introduces dynamic resource allocation where the constraint on frequency-domain resources is not fixed but varies based on time-domain overlap conditions. The system transitions between constrained mode (when overlap exists) and relaxed mode (when no overlap), optimizing both reliability and productivity dynamically.
3Adaptability or versatility
If multiple PDSCHs are scheduled without time-domain overlap consideration, then scheduling flexibility is improved, but processing complexity increases for UEs with limited capabilities
Solution Approach 1:
The patent applies different scheduling rules to different time-domain scenarios. When PDSCHs overlap in time, strict resource limiting is applied; when they don't overlap, more flexible scheduling is permitted. This local differentiation reduces processing complexity by providing clear, context-dependent rules rather than universal constraints.
Data Source
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AI summary
Disclosed in the present application are a method and apparatus used in a node for wireless communication. The method comprises: a first receiver receiving a plurality of pieces of signaling; and the first receiver receiving and decoding a plurality of PDSCHs, wherein the plurality of pieces of signaling respectively schedule the plurality of PDSCHs, and the plurality of PDSCHs comprise a unicast PDSCH and a multicast PDSCH; and whether the total number of frequency-domain resources occupied by the plurality of PDSCHs can be greater than a first upper limit is related to whether the plurality of PDSCHs are overlapped in a time domain, and the first upper limit is a positive integer greater than 1.